First, the pivot is the first non-zero entry in Row 1, so it is the "1". The goal is to cahnge the "3" under the "1" to a zero. So, the row to change is Row 2. Thus, the insruction will be written next to Row 2, and has the outline form

Next, we look at the pivot column

To make these numerically the same, multiply Row 1 by 3. Finally, since they have the same sign, we insert a minus, giving the row operation as

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